Prescription Pattern of Anti-Parkinson's Disease Drugs in Japan Based on a Nationwide Medical Claims Database

•We used a medical claims database to assess anti-Parkinson drugs in Japan.•The analysis included 155,483 patient-years from 2008 to 2016.•L-dopa monotherapy was the most common prescription, especially for patients ≥60 years old.•Non-ergot dopamine agonists were most commonly prescribed to middle-aged patients.•Japanese clinicians adhere to local guidelines and tailor treatment to patients.